AVR910 Programmer Arduino Uno Rev 3.0 Arduino Leonardo Rev 3.0 Arduino MEGA2560 Arduino Ethernet Shield W5100. The control software is controlled from AVR Studio and a MS-DOS command line interface. The CPL-AVR910 Programmer allows a user program to be downloaded into.
Arduino Uno is a microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
You can tinker with your UNO without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again. “Uno” means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards. You can find your board warranty informations. Getting Started You can find in the all the information you need to configure your board, use the Arduino Software (IDE), and start tinker with coding and electronics. On the Software.
On Projects. On the Product itself through Microcontroller Operating Voltage 5V Input Voltage (recommended) 7-12V Input Voltage (limit) 6-20V Digital I/O Pins 14 (of which 6 provide PWM output) PWM Digital I/O Pins 6 Analog Input Pins 6 DC Current per I/O Pin 20 mA DC Current for 3.3V Pin 50 mA Flash Memory 32 KB (ATmega328P) of which 0.5 KB used by bootloader SRAM 2 KB (ATmega328P) EEPROM 1 KB (ATmega328P) Clock Speed 16 MHz LEDBUILTIN 13 Length 68.6 mm Width 53.4 mm Weight 25 g OSH: Schematics Arduino Uno is open-source hardware! You can build your own board using the following files: Programming The Arduino Uno can be programmed with the ( (IDE)). Select “Arduino/Genuino Uno from the Tools Board menu (according to the microcontroller on your board). For details, see the. The ATmega328 on the Arduino Uno comes preprogrammed with a that allows you to upload new code to it without the use of an external hardware programmer. It communicates using the original STK500 protocol (, ).
You can also bypass the bootloader and program the microcontroller through the ICSP (In-Circuit Serial Programming) header using or similar; see for details.
Before we can start to program the ATmega, we need to initialise the chip. The chip itself needs to be told about various parameters such as it’s clock speed, how much flash to reserve for the bootloader (none in our case) and so on. This is known as “programming the fuses”.
The first thing to do is to connect the Gertboard to your Raspberry Pi and install 4 jumper wires from the Pi’s GPIO to the ATmegas ISP port. The manual has a much better picture than my photos show below, however: The wires to connect up are as follows:. GPIO pin 8 - ISP pin 5 ( RESET). GPIO pin 9 - ISP pin 1 ( MISO). GPIO pin 10 - ISP pin 4 ( MOSI). GPIO pin 11 - ISP pin 3 ( SCLK) The obvious down-side of doing it this way is that you can’t use the Raspberry Pi’s SPI interface when developing code for the ATmega. Hopefully this will not be an issue.
Some photos to help visualise the connections. Connecting to the ATmega’s ISP connector Another view of the above. Ignore the additional white wire on the right-hand side Once that’s done, connect the Gertboard to the Pi and power up. Once Linux has booted on the Pi, then run the avrsetup command. Avrsetup You will be propmpted for the type of ATmega microcontroller; 1 for an ATmega 328p or 2 for the ATmega168. If this command works OK, you should see the following: Initialising a new ATmega microcontroller for use with the Gertboard. Make sure there is a new ATmega chip plugged in, and press.
1 for an ATmega328p or 2 for an ATmega168: 1 Initialising an ATmega328p. Looks all OK - Happy ATmega programming! And that’s it. You can now run-up the ardunio IDE and start to use it to send code into the ATmega microcontroller. Thank you very much for your quick answer Gordon. I am very gratefull. I was the hole Monday evening trying to upgrade, update, remove, purge and so forth But It was imposible to find out the solution.
Finally I decided to make a new clean installation of Raspbian in my SD and everything works perfect!! Great job Gordon! Feedback: I actually login Rasperry-pi via ssh. I’m afraid of arduino IDE is a bit slow due to the JVM requirements. Everything works much more smoothly ir you are connected directy to a TV without ssh or VNC -Sergio. Further to my previous post It seems I don’t need to use avrsetup.
After following your steps for installing and setting up the Arduino IDE and adding the ATtiny support package from High-Low Tech, I’m able to upload sketches to an ATtiny84 and have set the fuses for 8MHz internal clock via the (unlikely name) Burn Bootloader command of the Arduino IDE. Thank you VERY much. I’m now confident that I need no more than the RasPi to develop the sketches I need to deploy. I will fully disclose deployable (ExpressPCB) PCB designs for ATtiny when they have been tested. Hi There First of all many thanks to Gordon for the great work. Two days ago I was playing with a thermistor and the ATmega chip everything was working fine, upload and test a couple of programs when I get the following message: avrdude: initialization failed, rc=-1 Double check connections and try again, or use -F to override this check. I’ve tried to upload a program just with the 4 wires connected onlyand nothing.
Tried to setup the chip again and the same message appears. Use a different SD card and nothing. Reinstalled ATmega softwarenono. Tried on a second Pisame results.
Last thing I tried was to connect ATMega directly to the Raspberry pi GPIO pins and guess whatsame message again So I’m thinking it’s a problem with the actual ATmegachip, I’ve ordered a replacement so I can check if that is the case. In the mean time I’d like to know if there any way to reset the ATMega chip.
Hi There, Unlikey the ATmega is ‘bricked’, but you never know One thing I have noticed very recentky is that some regular updates of the base Debian installs a new version of the arduino software – and that then overwrites the boards.txt and /etc/avrdude.conf files. My installation script won’t overwrite these if the.bak file exists – something I need to fix soon, so it might be worthwhile seeing if this is the case, and if so, remove the “.bak” files: sudo rm /usr/share/arduino/hardware/arduino/boards.txt.bak /usr/share/arduino/hardware/arduino/programmers.txt.bak and then re-run the origianl setup.sh script again. However, assuming that’s OK, try running the avrsetup script again – programming the fuses multiple times is OK. My suspicion is that an update has installed new avrdude, config files, etc.
Which is something I didn’t anticipate at the time. Let me know if any of this helps. Hi, i am trying to do this with my own atmeg8 (8PU), but so far have never got it right. I can’t get the avrsetup to work. Besides the gpio interface and the fuse values(which i took from boards.txt) would i need to tweak anything for this chip specifically?
Avrdude just says device not responding. I have tested all gpios separately and that’s fine. Ground and 3v3 are connected as it seems they should be. Then the SPI interface is direct to pi. If i connect lights all flash as expected except the MISO. I guess that means it could be a dead chip?
I would next test with an arduino board to make sure i am not doing something stupid. @bobbinz: What do you mean with “3v3 jumper needs to be fitted”. I might have overlooked this statement as well. Curiously I got the same problem, and I am afraid I got the chip briked. Avrdude: Device signature = 0x000000 avrdude: Yikes!
Invalid device signature. I called avrsetup, which worked perfectly: pi@raspberrypi /atmel/init $ avrsetup Initialising a new ATmega microcontroller for use with the Gertboard. Make sure there is a new ATmega chip plugged in, and press. 1 for an ATmega328p or 2 for an ATmega168: 1 Initialising an ATmega328p Looks all OK – Happy ATmega programming! And tried then to upload blinky.c pi@raspberrypi /atmel/init $ make install avr-gcc blinky.c -o blinky -Wall -Os -std=gnu99 -mmcu=atmega328p -I. The Pi has 3.3v outputs which some say are easy to damage The Gertboard buffers the Pi’s outputs, so if you blow up an output on the Gertboard it’s one chip to replace and not the whole Pi.
The Gertboard has additional drivers too for higher current and a motor driver, as well as analog input and output chips. Arduino is a hardware/software combination revolving round the ATmega processor – it’s a microcontroller which doesn’t normally run an operating system. The Gertboard has an ATmega processor and is largely Arduino compatible.
The ATmega has analog inputs which the Pi doesn’t, it also has more hardware PWM channels avalable – the Pi only has one. So the Pi on its own is still very capable – add on the Gertboard for some buffering and additional interfacing and an ATmega. The Arduino is mostly standalone with more IO capabilities than the Pi has, but it’s also much slower with much less RAM (2KB vs. 512MB) -Gordon. Hi Gordon, Thanks for all the work you’ve done for us with this. I hope I’m not coming across as ungrateful, but there’s a problem in the avrsetup script. It ignores really bad errors reported by avrdude.
I’ve modified my setup so that the avrdude full output is always displayed (as described at ), and this is is what I saw: root@raspberrypi:# avrsetup Initialising a new ATmega microcontroller for use with the Gertboard. Make sure there is a new ATmega chip plugged in, and press. 1 for an ATmega328p or 2 for an ATmega168: 1 Initialising an ATmega328p /usr/bin/avrdude -qq -c gpio -p atmega328p -U lock:w:0x3F:m -U efuse:w:0x07:m -U lfuse:w:0xE7:m -U hfuse:w:0xD9:m avrdude.orig: AVR device not responding avrdude.orig: initialization failed, rc=-1 Double check connections and try again, or use -F to override this check. Looks all OK – Happy ATmega programming!
Without the mod all I saw was: root@raspberrypi:# avrsetup Initialising a new ATmega microcontroller for use with the Gertboard. Make sure there is a new ATmega chip plugged in, and press. 1 for an ATmega328p or 2 for an ATmega168: 1 Initialising an ATmega328p Looks all OK – Happy ATmega programming! It was quite puzzling until I could see the avrdude output. So I thought I’d let you know that avrsetup was getting fooled. Cheers, Laszlo.
/usr/bin/avrdude -q -V -p atmega328p -C /etc/avrdude.conf -c gpio -b 57600 -P /dev/ttyS1 -U flash:w:build-cli/blink.hex:i avrdude: AVR device initialized and ready to accept instructions avrdude: Device signature = 0x1e950f avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed To disable this feature, specify the -D option. Avrdude: erasing chip avrdude: reading input file “build-cli/blink.hex” avrdude: writing flash (2130 bytes): avrdude: 2130 bytes of flash written avrdude: safemode: Fuses OK avrdude done. No error at all, compile and upload seems find, but my led just wont blink! Any idea why?
I tried using Arduino IDE it went perfectly fine, but I just want the liberty of compiling and uploading stuff via command line like the above. Please help anyone? Hi Gordon, I have just a stupid question from my side regarding the clock for the ATMega328p and the instruction Serial.begin(115200); On my Gertboard a have a 12MHz Resonator. When I initialze my interface with Serial.begin(115200); then I can also measure a Communication with 115,2kBaudso far.
But what happens if I take now this programmed ATmega328p to a separate PCB supplied with 5V instead of 3v3 and a 16MHz resonator instead of 12MHz? From my point of view I should than measure a Baudrate of 16/12.115,2 = 153,3 Should I then on my Gertboard – in order to have on my separate PCB a Baudrate of 115,2kBaud- write Serial.begin(86400).
This would bring me than on my seprate PCB then to the expected 115,2kBaud. First off, a.huge. thanks for getting this stuff together, Gordon! I have been happily programming ATMegas for a bit now, starting with your Gertboard route, and have managed to get things working programming via the Pi with the ATMega328p on a standalone breadboard with 12MHz crystal etc. I’m doing some relatively heavy-duty stuff now and am trying out some alternative methods of programming (eg using avrisp mk ii) and as part of this was trying to understand everything in your boards.txt entry for the Gertboard/SPI route.
I see a number of lines with gert328.bootloader. – but I thought that by going through SPI we bypass bootloading and just write direct? So I wondered if I could ask what role (if any) do the gert328.bootloader. lines in boards.txt play? Is this for an alternative bootloader based approach to the SPI programming route? I see the high fuse is 0xDA, differing from the avrsetup entry of 0XD9 – setting BOOTSZ to 01 (1024w) – so it looks like some thought’s gone into how much space to set aside.
Thanks again for getting me started on all this, it’s a lot of fun!